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Study On Comprehensive Utilization And Disposal Technology Model Of Scaled Livestock And Poultry Manure

Posted on:2019-05-10Degree:MasterType:Thesis
Country:ChinaCandidate:M XuanFull Text:PDF
GTID:2381330596988415Subject:Environmental Engineering
Abstract/Summary:PDF Full Text Request
he state vigorously promotes the utilization,treatment and utilization of livestock and poultry manure,and various modes of utilization and treatment continue to emerge.However,the utilization and treatment of farmland manure resources is greatly affected by natural conditions,agricultural production methods,and economic conditions.China's territory is vast.Regional agricultural production methods,natural and socio-economic conditions differ significantly.Domestic research on aquaculture pollution control has mainly focused on source control,end treatment and other aspects.Reports on the combination of regional characteristics of livestock and poultry manure resource utilization and treatment technology have been rare and have not yet formed a suitable animal for each region.Poultry farming manure recycling resource utilization technology model.This research through data review,typical case investigation and analysis,statistical analysis of regional aquaculture pollution prevention and control patterns,integration and research for different regions of China's livestock and poultry manure waste resource utilization and treatment technology model,formed the following conclusions:1)Analyze and summarize the existing major scale livestock and poultry manure treatment models in China.China has a large livestock and poultry husbandry and a diversified manure treatment model.Through data analysis and on-site investigations,we have obtained large-scale domestic livestock and poultry in China.The main utilization and disposal modes of farm manure are: production of organic fertilizer,composting(storage)of agricultural use,bedding and padding,and biogas production.The main modes of wastewater utilization and treatment are: standard discharge,advanced treatment and reuse,and anaerobic treatment.(Storage)Four modes of agricultural use and bedding.2)The utilization and treatment mode of livestock and poultry manure waste recycling is closely related to natural features,agricultural production methods,farm scale,and economic development level;currently,the main problems in China's livestock and poultry manure waste resource utilization and treatment are: 1 The layout of breeding plans is irrational,and the balance of planting and breeding in the region cannot be achieved;2 the level of clean production of culture is low,and the disposal and utilization of manure is difficult;3 the mode of utilization and treatment of manure resources suitable for the characteristics of the area is not formed,and the manure treatment facilities are not formed.The operation is difficult and the effect is not obvious;4 The supporting facilities for resource utilization and treatment of farmed sewage are not complete.3)Based on the zoning study of pollution prevention and control model for livestock and poultry in China,combined with the statistical analysis of the verification and accounting results of the total emission reduction of main pollutants in agricultural sources during the “Twelfth Five-year Plan”,the main livestock and poultry(hogs and dairy cows)suitable for each region will be selected.The technical model of the utilization and treatment of manure resources,beef cattle,laying hens and broilers,provides technical support for the division and classification of resources and utilization of livestock and poultry manure.
Keywords/Search Tags:scale, manure resource recycling, pollution prevention and control mode, balance of planting and breeding
PDF Full Text Request
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